_:n1785c2a0b2614359bad35ab1ae9560baxb12
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"If the offending axis still moves in pronterface then the TMC \nconnection error can actually be ignored but should still be dealt with \nfor completeness.\n\nYou will need to be powered on from the mains for the TMC2208&#039;s to \nwork correctly - if you have the printer connected via USB you will need\n to disconnect, power by mains and then connect again.Make \nsure that the TMC2208 drivers are installed the right way round (if \ninstalled incorrectly they will break - the kit includes one spare):\n\nhttps://makertech-3d.dozuki.com/Guide/Stage+08:+Wiring/58?lang=en#s769\n\n\n\nDouble check the TMC drivers on\nthe control board, there should be no jumpers installed underneath on the board\nbut one jumper should be installed on the corresponding UART pins, see blue\narrows:\n\nhttps://makertech-3d.dozuki.com/Guide/Stage+08:+Wiring/58#s769\n\n&nbsp; Whilst powered off remove and\nreinstall the offending driver and its corresponding UART jumper.Make sure you have the latest\nversion of the TMC library installed:\n\nhttps://makertech-3d.dozuki.com/Guide/Stage+09:+Firmware/53?lang=en#s658\n\n&nbsp; Double check that the installed\nTMC drivers are activated in the firmware:\n\nhttps://makertech-3d.dozuki.com/Guide/Stage+09:+Firmware/53?lang=en&amp;permalink=1#s770\n\n&nbsp; If the offending axis itself moves OK (remember that \nthe hotend needs to be above 170 degrees C for the Extruders to move) \nbut the TMC connection error\npersists, you will need to run the affected driver/s in standalone mode,\n this essentially\nputs them into a &ldquo;manual mode&rdquo; where the trim-pot on the driver can be \nadjusted\nto increase/decrease the current to the motors, similar to the A4988 \ndrivers.\nIn standalone mode their functioning is still the same. See following step for doing so\n(in this example the Y and E1 axis is having the connection error): 1.&nbsp; In the stepper drivers&rsquo;\nsection of the firmware (lines 680-695 in Configuration.h) for the Y and E1\naxis replace &quot;TMC2208&quot; with TMC2208_STANDALONE, so it looks like\nthis: #define X_DRIVER_TYPE &nbsp; TMC2208#define Y_DRIVER_TYPE &nbsp; TMC2208_STANDALONE#define Z_DRIVER_TYPE &nbsp; TMC2208 //#define X2_DRIVER_TYPE A4988 //#define Y2_DRIVER_TYPE A4988 //#define Z2_DRIVER_TYPE A4988 //#define Z3_DRIVER_TYPE A4988 //#define Z4_DRIVER_TYPE A4988 #define E0_DRIVER_TYPE TMC2208 #define E1_DRIVER_TYPE TMC2208_STANDALONE //#define E2_DRIVER_TYPE A4988 //#define E3_DRIVER_TYPE A4988 //#define E4_DRIVER_TYPE A4988 //#define E5_DRIVER_TYPE A4988 //#define E6_DRIVER_TYPE A4988 //#define E7_DRIVER_TYPE A4988\n\n&nbsp; 2.&nbsp; Then, with the printer powered\noff, remove the corresponding UART jumpers for the axes marked as being standalone.\n\n&nbsp; Then add three jumpers  under the TMC drivers position as if it were an A4988 driver. See image here:https://d17kynu4zpq5hy.cloudfront.net/igi/makertech-3d/16woVuvaG5aYSICA.full 3.&nbsp; Upload the firmware.\n\n&nbsp; 4.&nbsp; Connect with pronterface and\ncheck for errors, if you get the EEPROM error, send M502 followed by M500. The\nTMC connection error should have disappeared. Remember that you need to also be\npowered on from the mains, not just the USB.\n\n&nbsp; 5.&nbsp; In pronterface check the\nmotion of all of the axes, if you find that the stand-alone axes\nare underpowered, there is a trim-pot on the driver itself that you can turn\nclockwise to increase the current and vice versa.\n\n&nbsp;\n\n"
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